godan verb (-ru), transitive verb
carry on one's back; give a piggyback ride
Colloquial verb for carrying a child (or occasionally an adult) on one's back, similar to おんぶする but as a godan verb. Often used in casual, everyday speech.
See also: 負ぶう
The child said they were tired, so I carried them on my back and walked home.
お母さんが赤ちゃんをおぶっている。
The mother is carrying her baby on her back.